Category Health/Medical

Just 20 minutes of Contact with Nature will Lower Stress Hormone levels, reveals new study

A pleasant walk in the woods, a ‘nature pill,’ measurably reduces stress hormone levels.
Credit: © robsonphoto / Fotolia

Taking at least twenty minutes out of your day to stroll or sit in a place that makes you feel in contact with nature will significantly lower your stress hormone levels. That’s the finding of a study that has established for the first time the most effective dose of an urban nature experience. Healthcare practitioners can use this discovery, published in Frontiers in Psychology, to prescribe ‘nature-pills’ in the knowledge that they have a real measurable effect.

“We know that spending time in nature reduces stress, but until now it was unclear how much is enough, how often to do it, or even what kind of nature experience will benefit us,” says Dr...

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Scientists Decipher 3D structure of a Promising Molecular Target for Cancer Treatment

The 3D structure of human ATP-citrate lyase, a metabolic enzyme that plays a key role in cancer cell proliferation and other processes.
Credit: Nimbus Therapeutics; Liang Tong, Columbia University, Nature

Discovery could be a major step in developing therapies for cancer, controlling cholesterol. Columbia University scientists, in collaboration with researchers from Nimbus Therapeutics, have demystified a metabolic enzyme that could be the next major molecular target in cancer treatment.

The team has successfully determined the 3D structure of human ATP-citrate lyase (ACLY) – which plays a key role in cancer cell proliferation and other cellular processes – for the first time...

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‘Molecular Surgery’ Reshapes Living Tissue with Electricity but no Incisions

A new noninvasive process can alter the curve of a cornea from that seen in blue in a) to the new position seen in red in b) to fix vision problems.
Credit: Rachel Qu, Anna Stokolosa, Charlotte Cullip

Traditional surgery to reshape a nose or ear entails cutting and suturing, sometimes followed by long recovery times and scars. But now, researchers have developed a “molecular surgery” process that uses tiny needles, electric current and 3D-printed molds to quickly reshape living tissue with no incisions, scarring or recovery time. The technique even shows promise as a way to fix immobile joints or as a noninvasive alternative to laser eye surgery.

“We envision this new technique as a low-cost office procedure done under local anesthesia,” says Michael Hill, Ph.D...

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Next-Generation Single-Dose Antidotes for Opioid Overdoses

Next-generation single-dose antidotes for opioid overdoses
Covalent nanoparticles (top) release naloxone (purple structures) slowly over 24 hours. Credit: Marina Kovaliov

The U.S. opioid epidemic is being driven by an unprecedented surge in deaths from fentanyl and other synthetic opiates. Fentanyl’s powerful effects are long-lasting, and even tiny amounts of the drug can lead to an overdose. Antidotes, such as naloxone, do not last long enough in the body to fully counter the drug, requiring repeated injections. Now, scientists report that they are developing single-dose, longer-lasting opioid antidotes using polymer nanoparticles.

The researchers will present their results today at the American Chemical Society (ACS) Spring 2019 National Meeting & Exposition.

“We became interested in this problem while trying to make non-addictive pa...

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